Help install on CentOS 5

good day

My case is that I tried to install Zimbra on CentOS 5 but when I run the command. / Install.sh - platform-override I get the following error:

ERROR: Installation can not proceeed. Please fix your /etc/hosts file
to contain:

<FQHN> <ip> <hN>

Where is the ip address <IP> of the host,
FULLY QUALIFIED <FQHN> is the host name, and
<hN> Is the (optional) hostname-only Portion

I searched the threads but do not know how I should configure / etc / hosts file on that file I have the following:
127.0.0.1 localhost.localdomain localhost
192.168.0.238 zimbra.usaquin.gov Zimbra
:: 1 Localhost6.localdomain6 localhost6

and the / etc / sysconf / network has the following information:
NETWORKING = yes
NETWORKING_IPV6 = no
HOSTNAME = usaquin.gov

Additionally, the configuration of eth0:
address: 192.168.0.238
Subnet Mask: 255.255.255.0
Gateway address 192.168.0.1

and /etc/resolv.conf
search localdomain
nameserver 200.21.200.10
nameserver 200.21.200.80

Thanks in advance